Required Fields for Device Data Collection {#pa2-use-setup-reqd-fields}
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These fields are the minimum fields required when you request the Payer Authentication Setup service. Other fields that can be used to collect additional information during a transaction are listed in the optional fields section. Under certain circumstances, a field that is normally optional might be required. The circumstance that makes an optional field required is noted.

[billTo_postalCode](https://developer.cybersource.com/docs/cybs/en-us/api-fields/reference/all/so/api-fields/bill-to-postal-code.md "")
:
This field is required when the billTo_country field value is `US` or `CA`.

[billTo_state](https://developer.cybersource.com/docs/cybs/en-us/api-fields/reference/all/so/api-fields/bill-to-state.md "")
:
This field is required for the US and Canada.

[card_accountNumber](https://developer.cybersource.com/docs/cybs/en-us/api-fields/reference/all/so/api-fields/card-account-number.md "")
:

[card_cardType](https://developer.cybersource.com/docs/cybs/en-us/api-fields/reference/all/so/api-fields/card-card-type.md "")
:
This field is required when the card type is Cartes Bancaires, JCB, China UnionPay, or Meeza.

[card_expirationMonth](https://developer.cybersource.com/docs/cybs/en-us/api-fields/reference/all/so/api-fields/card-expiration-month.md "")
:
This field is required when card_accountNumber is included.

[card_expirationYear](https://developer.cybersource.com/docs/cybs/en-us/api-fields/reference/all/so/api-fields/card-expiration-year.md "")
:
This field is required when card_accountNumber is included.

[invoiceHeader_ merchantDescriptorCountry](https://developer.cybersource.com/docs/cybs/en-us/api-fields/reference/all/so/api-fields/bill-to-state.md "")
:
For Meeza transactions, this value must be set to `EG` when Egypt is not set as the country in the merchant configuration during merchant boarding.

[payerAuthEnrollService_ merchantCountrycode](https://developer.cybersource.com/docs/cybs/en-us/api-fields/reference/all/so/api-fields/payer-auth-enroll-service-merchant-country-code.md "")
:
For Meeza transactions, this value must be set to `EG` when Egypt is not set as the country in the merchant configuration during merchant boarding.

payerAuthSetupService_run
: